Friday, April26, 2019 L-36.com


Marine Weather and Tides
Jacksonville Beach, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:45AMSunset 8:01PM Friday April 26, 2019 4:21 AM EDT (08:21 UTC) Moonrise 1:05AMMoonset 11:42AM Illumination 57% Phase: Waning Gibbous; Moon at 22 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ452 Expires:201904261545;;502197 Fzus52 Kjax 260739 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 339 Am Edt Fri Apr 26 2019 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-261545- Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 339 Am Edt Fri Apr 26 2019
.small craft should exercise caution...
Today..Southwest winds 15 to 20 knots, becoming west northwest in the afternoon. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters choppy. Showers likely and a slight chance of Thunderstorms in the morning.
Tonight..North northwest winds 15 to 20 knots, becoming north after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 4 seconds. Inland waters choppy.
Saturday..North northeast winds 10 to 15 knots, becoming east northeast in the afternoon. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters a light chop.
Saturday night..South southwest winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 9 seconds. Inland waters mostly smooth.
Sunday..South southwest winds 5 to 10 knots, becoming east southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Inland waters becoming a light chop.
Sunday night..South southeast winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Monday..East southeast winds 10 knots. Seas 1 to 2 feet. Inland waters a light chop.
Monday night and Tuesday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters mostly smooth.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 339 Am Edt Fri Apr 26 2019
Synopsis.. Strengthening low pressure over the ohio valley will move northeastward across the eastern great lakes today, dragging a cold front across our local waters early this afternoon. Showers and a few Thunderstorms will be possible through the mid-afternoon hours today along and ahead of this front. High pressure will build into the southeastern states tonight in the wake of this front, with northwesterly winds this evening shifting to northerly and gradually decreasing towards Sunrise on Saturday. High pressure will then shift eastward into the atlantic waters and will gradually strengthen early next week near bermuda, resulting in persistent southeasterly winds for much of next week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of apr 25, 2019 at 1200 utc... 69 nautical miles east of flagler beach. 80 nautical miles east of saint augustine beach. 96 nautical miles east southeast of jacksonville beach. 110 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 260119
afdjax
area forecast discussion
national weather service jacksonville fl
919 pm edt Thu apr 25 2019

Marginal risk of severe weather after midnight into Friday
morning...

Update
Strong shortwave ahead of cold front pushing across the fl
panhandle this evening with numerous showers and embedded strong
storms that are still expected to push into the suwannee river
valley and inland SE ga just after midnight and slowly progress se
down the i-75 corridor and towards the atlc coast towards morning
in a split fashion as the stronger storms remain along the i-75
corridor of NE fl while weaker showers and storms will drift onto
the atlc coast and i-95 corridor by sunrise Friday morning. The
best chance of strong isolated severe storms will remain closer to
the big bend region and i-75 corridor of inland north fl and
inland SE ga with a few damaging wind gusts the main threat, while
a few strong storms will be possible elsewhere the loss of energy
of this system as it tracks eastward and timing of diurnal temp
minimum will reduce the severe threat as storms track away from
the NE gomex. Rainfall amounts of 0.50-1.00" possible over far
inland areas with greatest storm risk while amounts of around
0.25" are expected elsewhere. Temps will fall into the upper
60s near 70 late this evening then remain steady the remainder of
the night ahead of the approaching system. The shortwave will
continue to produce some showers and storms across NE fl and
coastal SE ga in the morning hours, then fade by the afternoon
hours as the shortwave pushes offshore. Local surface winds will
increase ahead of the approaching cold front during the late
morning and early afternoon hours with west to southwest winds at
15-25 mph with gusts to 30-35 mph possible, but conditions should
remain below wind advisory levels of 40 mph. MAX temps a bit
tricky with the morning timing of convection but expect enough
partial clearing by the afternoon ahead of trailing cold front to
push highs back into the lower to middle 80s.

Aviation
Vfr with increasing mid high clouds this evening, then pre-frontal
showers reach the TAF sites by 06-09z and have kept vcsh in place
then in the 09-15z time frame will be the best threat for shower
activity and embedded storms with gnv having the highest chance of
MVFR CIGS vsbys from approaching frontal system. Gusty SW winds at
10-15g20-25 knots develop by 15z and shift to the west during the
afternoon at all TAF sites, while predominantVFR conds return to
all TAF sites after 18z.

Marine
Southerly winds increase to 15 to 20 knots ahead of approaching
system tonight with seas building to 3 to 6 feet. A weakening line
of showers and embedded storms will push into the waters just
after sunrise and impact the waters with some gusty winds and
heavy rainfall and lightning strikes through the morning with a
decreasing trend in rainfall chances by the afternoon. Offshore
west to southwest winds will increase following the storm activity
in the afternoon hours to 20-25 knots with seas of 3-7 ft.

Preliminary point temps pops
Amg 65 82 50 84 50 50 0 0
ssi 69 81 59 77 20 30 0 0
jax 67 86 53 82 40 50 0 0
sgj 67 85 60 79 10 50 0 0
gnv 66 85 53 85 60 70 0 0
ocf 66 84 53 86 30 70 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory from 10 am Friday to 4 am edt Saturday for
waters from altamaha sound ga to fernandina beach fl from
20 to 60 nm-waters from fernandina beach to st. Augustine
fl from 20 to 60 nm-waters from st. Augustine to flagler
beach fl from 20 to 60 nm.

Hess bricker


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi34 min SSW 6 G 8 71°F 72°F1013.5 hPa
LTJF1 8 mi34 min 71°F
BLIF1 11 mi34 min SW 6 G 7 72°F 1014.4 hPa72°F
41117 25 mi22 min 74°F3 ft
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi34 min W 9.9 G 14 72°F 70°F1013.5 hPa
41112 - Offshore Fernandina Beach, FL (132) 29 mi52 min 71°F3 ft
SAUF1 - St. Augustine, FL 30 mi22 min W 6 G 7 71°F 74°F1013.8 hPa (-0.0)66°F
RCYF1 35 mi34 min 78°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi97 min W 1 68°F 1014 hPa68°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi30 minSW 610.00 miPartly Cloudy70°F66°F87%1013.3 hPa
Jacksonville Craig Municipal Airport, FL9 mi29 minW 410.00 miPartly Cloudy70°F66°F87%1013.2 hPa
Jacksonville Naval Air Station, FL17 mi29 minWSW 510.00 miOvercast72°F64°F76%1013.4 hPa
Jacksonville International Airport, FL22 mi26 minW 128.00 miRain68°F64°F90%1013.2 hPa
Northeast Florida Regional Airport, FL22 mi26 minWSW 410.00 miPartly Cloudy70°F64°F84%1013.8 hPa
Fernandina Beach Municipal Airport, FL23 mi27 minW 810.00 miLight Rain70°F65°F85%1012.9 hPa

Wind History from NRB (wind in knots)
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Last 24hrS4SW4CalmCalmS5SW8SW86SE10SE12SE11SE11SE15SE12
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1 day agoSW4S6SW7SW6W6W8W6W5W6W5SE9SE10SE11SE11SE11S8S6S7S8S6SW4CalmSW3S3
2 days agoW3SW3SW4SW4S4355SE7E8SE9SE8SE9SE9S9SE9S7S7S6S5SW4SW5SW5SW6

Tide / Current Tables for Jacksonville Beach, Florida
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Jacksonville Beach
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Fri -- 01:57 AM EDT     5.03 feet High Tide
Fri -- 02:04 AM EDT     Moonrise
Fri -- 06:47 AM EDT     Sunrise
Fri -- 08:39 AM EDT     0.93 feet Low Tide
Fri -- 12:42 PM EDT     Moonset
Fri -- 02:15 PM EDT     4.50 feet High Tide
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 07:59 PM EDT     Sunset
Fri -- 08:40 PM EDT     1.13 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.854.84.13.32.41.6111.42.33.34.14.54.43.93.12.31.71.21.21.62.3

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Fri -- 01:05 AM EDT     1.87 knots Max Flood
Fri -- 02:04 AM EDT     Moonrise
Fri -- 04:31 AM EDT     -0.00 knots Slack
Fri -- 06:46 AM EDT     Sunrise
Fri -- 08:11 AM EDT     -1.58 knots Max Ebb
Fri -- 11:24 AM EDT     0.00 knots Slack
Fri -- 12:41 PM EDT     Moonset
Fri -- 01:37 PM EDT     1.37 knots Max Flood
Fri -- 04:49 PM EDT     -0.00 knots Slack
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 07:35 PM EDT     -1.50 knots Max Ebb
Fri -- 08:00 PM EDT     Sunset
Fri -- 11:25 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.91.71.20.5-0.5-1.3-1.5-1.6-1.5-1.2-0.40.61.31.31.10.6-0.2-1.1-1.5-1.5-1.4-1.1-0.4

Weather Map and Satellite Images
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GOES Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Jacksonville, FL (4,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.